<object id="utv_o_733752" height="326" width="400" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"><param value="http://www.ustream.tv/flash/live/733752" name="movie" /><param value="true" name="allowFullScreen" /><param value="always" name="allowScriptAccess" /><param value="transparent" name="wmode" /><param value="viewcount=true&amp;autoplay=false" name="flashvars" /><embed name="utv_e_733752" id="utv_e_733752" flashvars="viewcount=true&amp;autoplay=false" height="326" width="400" allowfullscreen="true" allowscriptaccess="always" wmode="transparent" xsrc="http://www.ustream.tv/flash/live/733752" type="application/x-shockwave-flash" /></object>

cd ~
mkdir src
cd ~/src
wget http://www.gtlib.gatech.edu/pub/apache/apr/apr-util-1.2.12.tar.gz
wget http://www.gtlib.gatech.edu/pub/apache/apr/apr-1.2.12.tar.gz
wget http://subversion.tigris.org/downloads/subversion-1.4.6.tar.gz
wget http://www.webdav.org/neon/neon-0.28.0.tar.gz
tar -xzf apr-util-1.2.12.tar.gz
tar -xzf apr-1.2.12.tar.gz
tar -xzf subversion-1.4.6.tar.gz
tar -xzf neon-0.28.0.tar.gz
cd ~/src/apr-1.2.12
./configure –prefix=$HOME LDFLAGS="-L/lib64"
make
make install
cd ~/src/apr-util-1.2.12
./configure –prefix=$HOME –with-apr=$HOME LDFLAGS="-L/lib64"
make
make install
cd ~/src/neon-0.28.0
./configure –enable-shared –prefix=$HOME LDFLAGS="-L/lib64"
make
make install
cd ~/src/subversion-1.4.6
./configure –prefix=$HOME –without-berkeley-db –with-zlib –with-ssl LDFLAGS="-L/lib64"
make
make install

cdmkdir svncd svn

Then we create a svn repository for our project 'myproject'

svnadmin create --fs-type fsfs myprojectchmod -R 755 myproject

It is often useful to use a graphical format to view the distribution of the nonzero elements within a sparse matrix. The MATLAB spy function produces a template view of the sparsity structure, where each point on the graph represents the location of a nonzero array element.

For example,

spy(west0479)